Well, あなた really should try and find your own style of マンガ art, but YouTube has a ton of great references. あなた can also try and study the art of mangas and animes while あなた read/watch them. And the マンガ Fall in 愛 Like a Comic has a How to Draw マンガ Mini Guide in the back of volume 2, I think.
Well, like other people say, あなた should try making your own style of drawing. However, there is a person (my idol) who teaches how to draw マンガ via the interenet and in his book called "Mastering manga". Here's a link (i think): www.markcrilley.com